Abstract:

A decoration board and a manufacture method therefore are provided to
generate different visible patterns on the decoration board from
different viewing angles. The decoration board includes an outer surface
and multiple stria structures disposed on the outer surface. Each stria
structure includes multiple hairlines, wherein the stria structures are
partially overlapped with one another to form multiple primary decoration
regions and multiple secondary decoration regions. According to various
overlapping frequency and overlapping shapes of the stria structures, the
primary decoration regions and the secondary decoration regions generate
different visible patterns under different viewing angles.

Claims:

1. A decoration board, comprising:an outer surface; anda plurality of
stria structures disposed on the outer surface, each of the stria
structures comprising a plurality of hairlines;wherein the stria
structures are partially overlapped with at least one another to form a
plurality of primary decoration regions and a plurality of secondary
decoration regions;wherein each of the primary decoration regions and
each of the secondary decoration regions, according to an overlapping
frequency and an overlapping shape of the overlapped stria structures,
generate different visible patterns from different viewing angles.

2. The decoration board as claimed in claim 1, wherein the visible
patterns, generated by the primary and the secondary decoration regions
from different viewing angles, are defined by a decorating sequence of
the stria structures.

3. The decoration board as claimed in claim 1, wherein the stria
structures further comprises at least one additional decoration region
with a decoration frequency that is an integral equal to or greater than
three, thereby the visible pattern varies with the decoration frequency.

4. The decoration board as claimed in claim 1, wherein at least one of the
decoration board and the stria structure is made of a reflective
material.

5. The decoration board as claimed in claim 1, wherein each stria
structure comprises a plurality of concentric circles.

6. The decoration board as claimed in claim 5, wherein center points of
the stria structures are arranged in a polygon.

7. The decoration board as claimed in claim 5, wherein a circular
non-decorated region is disposed in a center of at least one of the stria
structures.

8. The decoration board as claimed in claim 5, wherein a non-decorated
region is disposed among at least three of the stria structures.

9. The decoration board as claimed in claim 5, wherein the concentric
circles of the stria structure form an annular region.

10. The decoration board as claimed in claim 1, wherein the stria
structure is a sunken structure generated by grinding, or a raised
structure generated by printing.

11. A manufacturing method of a decoration board, comprising the steps
of:providing an outer surface of the decoration board;disposing a
plurality of stria structures on the outer surface, each of the stria
structures comprising a plurality of hairlines; andpartially overlapping
the stria structures with at least one another so as to generate a
plurality of primary decoration regions and a plurality of secondary
decoration regions;wherein each of the primary decoration regions and
each of the secondary decoration regions, according to an overlapping
frequency and an overlapping shape of the overlapped stria structures,
generate different visible patterns from different viewing angles.

12. The method as claimed in claim 11, wherein the step of generating
different visible patterns from different viewing angles
comprises:generating different visible patterns from different viewing
angles according to a decorating sequence of the stria structures.

13. The method as claimed in claim 11, wherein the step of generating the
primary and the secondary decoration regions comprises:generating at
least one additional decoration region with a decoration frequency that
is an integral greater than or equal to three, thereby the visible
pattern varies with the decoration frequency.

14. The method as claimed in claim 11, wherein the step of disposing the
stria structures comprises:providing a plurality of concentric circles so
as to form each of the stria structures.

15. The method as claimed in claim 14, further comprising:arranging the
stria structures such that center points of the stria structures are
arranged in a polygon.

16. The method as claimed in claim 14, further comprising:defining a
circular non-decorated region in a center of at least one of the stria
structures.

17. The method as claimed in claim 14, further comprising:defining a
non-decorated region among at least three of the stria structures.

18. The method as claimed in claim 14, further comprising:forming an
annular region by the concentric circles of the stria structure.

19. The method as claimed in claim 11, wherein the step of disposing the
stria structures comprises:forming the stria structures with sunken
structures generated by grinding;or forming the stria structures with
raised structures generated by printing.

20. The method as claimed in claim 11, wherein at least one of the
decoration board and the stria structure is made of a reflective
material.

Description:

BACKGROUND OF THE INVENTION

[0001]1. Field of the Invention

[0002]The present invention relates to a decoration board and its relevant
manufacture method, in particular, to a decoration board applied to an
electronic device and the relevant manufacture method thereof.

[0003]2. Related Art

[0004]Decoration board of electronic products may be designed through
several manners as follows, so as to result in many different visual
appearance variations.

[0005]The decoration board of certain electronic product is designed to be
demountable, so the decoration board may be replaced as users like.
However, the decoration board is replaced by dismounting and mounting,
thus causing inconvenience for consumers in use. Therefore, a technique
of changing a case by using light variation is proposed. For example,
disposing several LED (Light Emitting Diode) elements onto the decoration
board of a mobile phone. Under different situations, such as incoming
call answering and short message sending, the LED elements may show
different light colors according to different situations, thereby varying
the color of the decoration board of the mobile phone. Further, an
electrochromic technique is used, in which an electrochromic layer is
disposed in the decoration board of the electronic product, and voltages
with different values are conducted in the electrochromic layer, such
that the electrochromic layer shows different colors, thereby varying the
color of the case.

[0006]However, no matter the LED or the electrochromic technique is used
in the decoration board variation in the conventional art, it is
necessary to supply an additional power source, which results in
additional power consumption. However, if the manner of replacing the
decoration board by oneself is adopted, the pursuit of novelty and
originality demanded by the user cannot be satisfied.

[0007]Therefore, an issue to be urgently solved is how to solve the
problems resulting from the appearance variation of the decoration board
in the conventional art.

SUMMARY OF THE INVENTION

[0008]To solve the aforesaid problems of the prior art, the present
invention provides a decoration board and the relevant manufacture method
to form various visible patterns of multiple stria structures on the
decoration board by means of different decoration frequency and/or
overlapping shapes.

[0009]In an embodiment of the present invention, a decoration board
comprises an outer surface and multiple of stria structures disposed on
the outer surface. Each of the stria structures has multiple hairlines.
The stria structures are partially overlapped with at least one another
to form multiple primary decoration regions and multiple secondary
decoration regions. Each of the primary decoration regions and each of
the secondary decoration regions, according to an overlapping frequency
and an overlapping shape of the overlapped stria structures, generate
different visible patterns from different viewing angles.

[0010]In another embodiment of the present invention, a manufacturing
method of a decoration board includes the following steps. First of all,
provide an outer surface of the decoration board. Next, dispose multiple
stria structures on the outer surface; each of the stria structures has
multiple hairlines. Afterwards, partially overlap the stria structures
with one another so as to generate multiple primary decoration regions
and multiple secondary decoration regions. Each of the primary decoration
regions and each of the secondary decoration regions, according to an
overlapping frequency and an overlapping shape of the overlapped stria
structures, generate different visible patterns from different viewing
angles.

[0011]These and other features, aspects, and advantages of the present
invention will become better understood with reference to the following
description and appended claims. It is to be understood that both the
foregoing general description and the following detailed description are
examples, and are intended to provide further explanation of the
invention as claimed.

BRIEF DESCRIPTION OF THE DRAWINGS

[0012]The present invention will become more fully understood from the
detailed description given herein below for illustration only, and thus
is not limitative of the present invention, and wherein:

[0013]FIG. 1A is a first schematic view of a decoration board according to
a first embodiment;

[0014]FIG. 1B is a second schematic view of the decoration board according
to the first embodiment;

[0015]FIG. 1C is a third schematic view of the decoration board according
to the first embodiment;

[0016]FIG. 2A is a first schematic view of the decoration board according
to a second embodiment;

[0017]FIG. 2B is a second schematic view of the decoration board according
to the second embodiment;

[0018]FIG. 3A is a first schematic view of the decoration board according
to a third embodiment;

[0019]FIG. 3B is a second schematic view of the decoration board according
to the third embodiment;

[0020]FIG. 4A is a first schematic view of the decoration board according
to a fourth embodiment;

[0021]FIG. 4B is a cross-sectional view of FIG. 4A;

[0022]FIG. 4c is a second schematic view of the decoration board according
to the fourth embodiment;

[0023]FIG. 4D is a third schematic view of the decoration board according
to the fourth embodiment;

[0024]FIG. 4E is a fourth schematic view of the decoration board according
to the fourth embodiment;

[0025]FIG. 5A is a first schematic view of the decoration board according
to a fifth embodiment;

[0026]FIG. 5B is a second schematic view of the decoration board according
to the fifth embodiment;

[0027]FIG. 5c is a third schematic view of the decoration board according
to the fifth embodiment;

[0028]FIG. 5D is a fourth schematic view of the decoration board according
to the fifth embodiment; and

[0029]FIG. 6 is a flow chart of processes of a manufacturing method of the
decoration board.

DETAILED DESCRIPTION OF THE INVENTION

[0030]Reference will now be made in detail to the present preferred
embodiments of the invention, examples of which are illustrated in the
accompanying drawings. Wherever possible, the same reference numbers are
used in the drawings and the description refers to the same or the like
parts.

[0031]Referring to FIG. 1A, a first top view of a decoration board
according to a first embodiment is shown. The decoration board includes
an outer surface 10 and multiple stria structures 20 disposed on the
outer surface 10. Such decoration board is used to cover onto an
electronic apparatus as a part of the housing. For example, the
decoration board may serve as a top cover of a notebook computer,
configured onto the back side of its display panel.

[0032]As shown in FIG. 1, the stria structures 20 are disposed on the
outer surface 10 of the decoration board, and each of the stria
structures 20 includes multiple hairlines. The type of the hairlines can
be actually hair-thin lines. The stria structures 20 may be sunken
structures generated by grinding the outer surface 10, or raised
structures generated by printing ink materials on the outer surface 10.
The type of stria structures 20 is determinable according to the required
appearance effect of the decoration board or the machining method of the
decoration board. Various types of stria structures 20 will be further
disclosed in below sections. As shown in FIG. 1, these stria structures
20 are partially overlapped with one another to form multiple primary
decoration regions 21 and multiple secondary decoration regions 22 on the
outer surface 10.

[0033]Referring to FIG. 1B, an enlarged partial view of the decoration
board according to the first embodiment is shown. The primary decoration
region 21 of the first embodiment is enlarged in FIG. 1B. As shown in
FIG. 1B, the shape of the primary decoration region 21 the first
embodiment is a rhombus, but the shape of the primary decoration region
21 is not limited to a rhombus. The rhombus-shaped regions are the
regions in which the stria structures 20 are grinded or printed only once
in the plurality of partially overlapped stria structures 20. That is, a
rhombus-shaped region is the non-overlapped portion in the plurality of
stria structures 20.

[0034]Referring to FIG. 1C, a top view of another decoration board
according to the first embodiment is shown. The secondary decoration
regions 22 of the first embodiment are particularly emphasized in FIG.
1C. As shown in FIG. 1C, the shape of the secondary decoration regions 22
of the embodiment is spindle-shaped, and each of the stria structures 20
has four secondary decoration regions 22, that is, four spindle-shaped
regions, but the shape of the secondary decoration region 22 is not
limited to spindle-shaped. In FIG. 1C, the primary decoration regions 21
and the secondary decoration regions 22 are filled with different
cross-section lines, so as to clearly show that the primary decoration
regions 21 are rhombs, and the secondary decoration regions 22 are
spindles. The regions forming the spindles are the regions in which the
stria structures 20 are grinded or printed twice in the plurality of
partially overlapped stria structures 20. That is to say, the spindle
region is the portion at which two stria structures 20 are overlapped
with each other, i.e., the regions in which the stria structures 20 are
overlapped twice.

[0035]Basically in the present invention, visible patterns generated by
the stria structures will vary with a decoration frequency (such as an
overlapping frequency) and overlapping shapes. Referring to FIG. 1A, each
of the primary decoration regions 21 and secondary decoration regions 22
generates different visible patterns from different viewing angles
according to overlapping frequency and overlapping shapes of the stria
structures 20, which will be described in detail thereafter. Here, the
so-called patterns include, but not limited to, edge, shape, hairline
density, hairline thickness formed by the stria structures 20.

[0036]Referring to FIGS. 2A and 2B, first and second schematic views of
the decoration board according to a second embodiment are shown. In the
second embodiment, the patterns generated from different viewing angles
are defined by a decorating sequence of the stria structures 20. Here,
the so-called decorating sequence is the sequence of disposing each stria
structure 20, that is, the sequence of grinding or printing each stria
structure 20 on the outer surface 10. It may be clearly found in FIGS. 2A
and 2B that as long as the decorating sequence is varied, even for the
same stria structure 20, the different visible patterns may be generated,
thus generating a visually different effect.

[0037]Further, at least one of the decoration board and the stria
structure 20 may be made of a reflective material. Therefore, with the
variation of the reflective material due to the light ray reflection
(refraction), and the overlapping frequency and the overlapping shapes of
the primary decoration regions 21 and the secondary decoration regions 22
generated by partially overlapping the stria structures 20, it is
possible to generate more abundant and variable patterns from different
viewing angles. For the gloss of the overlapping positions of the stria
structures 20, for example, more overlapping frequency means more
grinding or printing times, and results in darker gloss of the region
with more overlapping frequency when being viewed from the front.
However, because of the reflective material, from other angles, the
region with more overlapping frequency may have a brighter gloss.
Therefore, the gloss of the overlapping position of the stria structure
20 may be varied according to different overlapping frequency and viewing
angles.

[0038]Referring to FIGS. 3A and 3B, first and second schematic views of
the decoration board according to a third embodiment are respectively
shown. In the third embodiment, the stria structures 20 further generate
at least one additional decoration region. In the above description, the
stria structures 20 generate the primary decoration regions 21 and the
secondary decoration regions 22, but in practice, more different
decoration regions may be generated through the variation of the
overlapping frequency and the overlapping shapes of the stria structures
20, which are called the additional decoration regions in the present
invention. Each additional decoration region has one decoration
frequency. The primary decoration regions 21 and the secondary decoration
regions 22 are mentioned above, so the decoration frequency of the
additional decoration region is an integral times larger than or equal to
three, and different decoration frequency correspond to different visible
patterns. As shown in FIG. 3A, in addition to the primary decoration
regions 21 in a rhomb shape and the secondary decoration regions 22 in a
spindle shape, there is a new pattern in the drawing, i.e., tertiary
decoration regions 23 approximately in a cross shape. The stria structure
20 of FIG. 3A has multiple hairlines, such that the drawing is relatively
complicated. For the convenience of description and the emphasis of the
tertiary decoration regions 23, the hairlines are simplified in FIG. 3B,
so as to clearly know that the tertiary decoration region 23 is
approximately in the cross shape. Further, in addition to the tertiary
decoration regions 23, by varying the overlapping frequency and the
overlapping shapes of the stria structures 20, quaternary, quinary, and
senary decoration regions with different visible patterns may be further
generated, such that the decoration board of the present invention may
generate more different visible patterns from different viewing angles.

[0039]Referring to FIG. 1A, it may be known from the drawing that each
stria structure 20 includes multiple concentric circles. That is to say,
multiple concentric circles form each stria structure 20. In certain
implementation, each concentric circle (the hairline) may be a reflecting
line. For sunken type of stria structures 20, the "reflecting" appearance
may be generated by grinding the outer surface 10 of a "metal" decoration
board with coarse abrasive materials. Grinded metal shines. Grinded metal
shines. For raised type of stria structures 20, the "reflecting"
appearance may be generated by printing the outer surface 10 with high
reflection-coefficient ink materials.

[0040]The concentric circles are further described herein below. Firstly,
referring to FIGS. 4A and 4B, a cross-sectional view taken along an AA'
line segment in FIG. 4A is shown in FIG. 4B. It may be found from FIG. 4B
that depths of lines of the concentric circles are different. In order to
achieve the different depths of the lines of the concentric circles, for
the stria structure 20 generated by grinding, the grinding pressure may
be varied to achieve the different depths of the lines of the concentric
circles. The larger grinding pressure may generate deeper depth of the
line of the concentric circle; oppositely, the smaller grinding pressure
may generate shallower depth of the line of the concentric circle,
thereby varying the patterns generated by the stria structures 20.

[0041]Referring to FIG. 4c, a second schematic view of the decoration
board according to the fourth embodiment is shown. It may be found from
the comparison between FIGS. 4C and 3A that widths of the lines of the
concentric circles of the two drawings are different. Here, during the
grinding, sizes of grinding particles may be varied, so as to achieve
different widths of the lines of the concentric circles, thereby varying
the patterns generated by the stria structures 20.

[0042]Further, through the different pitches of the concentric circles,
the patterns generated by the stria structures 20 may be varied.
Referring to FIG. 4D, a third schematic view of the decoration board
according to the fourth embodiment is shown. It may be found from the
comparison between FIGS. 4D and 1A that the pitch of the concentric
circles in FIG. 4D is distinctly larger than that of FIG. 1A. Here,
during the grinding, the density relation of the arrangement of the
grinding particles may be varied, thereby achieving different pitches of
the concentric circles.

[0043]Referring to FIG. 4E, a fourth schematic view of the decoration
board according to the fourth embodiment is shown. Here, the center
points of the stria structures may be arranged in a polygon. As shown in
the drawing, the center points 24 of the stria structures 20 are arranged
in rectangles, but the present invention is not limited here. It may be
found from FIG. 4E that a circular non-decorated region 25 is disposed at
the center of the stria structure 20. It is assumed that the decoration
board is made of the reflective material, and the circular non-decorated
region 25 may generate a bright spot on the decoration board, such that
the whole decoration board has multiple bright spots, thereby forming
another special pattern.

[0044]Referring to FIG. 4E, it may be known from the drawing that a
non-decorated region 26 is disposed among four stria structures 20, and
the non-decorated region 26 in the drawing is approximately a rectangle,
but the present invention is not limited here. Similarly, it is assumed
that the decoration board is made of the reflective material. In this
manner, when the non-decoration region 26 is disposed among the plurality
of stria structures 20, the reflecting regions on the decoration board
assume various different shapes, so as to form another special pattern.
Here, the non-decorated region 26 is not limited to be formed by four
stria structures 20, and may be formed by different numbers of stria
structures 20 according to the pattern requirements, but the number of
the stria structure 20 must be at least more than three (including
three).

[0045]Referring to FIGS. 1A and 5A, the concentric circles of the stria
structures 20 in FIG. 1A form a visually-solid circle, and the so-called
visually-solid circle is the region formed by the outmost concentric
circle in the stria structure and the center point, in which multiple
concentric circles are disposed. The concentric circles of the stria
structure 20 in FIG. 5A form an annular region, and the difference
between the two may be found after the two circles are compared.

[0046]Referring to FIGS. 5A to 5D, in this embodiment, the concentric
circles form the annular regions, so as to generate multiple different
visible patterns, and several patterns are listed in the drawings for
description instead of limitation. In FIG. 5B, the primary decoration
regions 21 and the secondary decoration regions 22 are introduced and
differentiated by different cross-section lines, so as to clearly know
the difference between the shapes of the primary and the secondary
decoration regions. It may be known from FIG. 5B that the primary
decoration region 21 is a spindle, and one stria structure 20 has eight
primary decoration regions 21, that is, eight spindles. The secondary
decoration region 22 is approximately in a shape surrounded by two
hyperbolas, and one stria structure 20 has four secondary decoration
regions 22. The annular regions formed by the concentric circles may
generate various different visible patterns. Referring to FIGS. 5C and
5D, it is known from FIG. 5c that the tertiary decoration region 23 is
approximately in a cross shape; here, FIG. 5c is simplified to emphasize
the tertiary decoration region 23. In FIG. 5D, the hairlines of the stria
structures 20 are simplified, so as to clearly know that the tertiary
decoration region 23 is approximately in the cross shape.

[0047]Referring to FIG. 6, a flow chart of processes of a manufacturing
method of the decoration board is shown. All the following steps are also
disclosed and mentioned in the descriptions and explanations above.

[0048]In Step S10, provide an outer surface of a decoration board. Such
decoration board is used to cover onto an electronic apparatus as a part
of the housing. For example, the decoration board may serve as a top
cover of a notebook computer, configured onto the back side of its
display panel.

[0049]In Step S20, dispose multiple stria structures on the outer surface,
in which each stria structure includes multiple hairlines. The stria
structures may be sunken structures generated by grinding the outer
surface, or raised structures generated by printing ink materials on the
outer surface. The type of stria structures is determinable according to
the required appearance effect of the decoration board or the machining
method of the decoration board. Basically in the present invention,
visible patterns generated by the stria structures will vary with a
decoration frequency (such as an overlapping frequency) and overlapping
shapes. Yet sometimes the decoration frequency is not always the same as
the overlapping frequency. The decoration frequency in the present
invention is defined as how many times the decoration board is decorated,
namely how many times of decoration processes are applied to the
decoration board. A specific stria structure is possible to be overlapped
only once (the overlap frequency is one) by another stria structure after
four times of decoration processes (the decoration frequency is four).

[0050]In certain cases, multiple concentric circles (namely the hairlines
of the present invention) may be disposed to form the stria structure.
For raised type of stria structures, it is possible to print out
concentric circles with same intervals and form a set of neat concentric
circles. For sunken type of stria structures, one or more spin-type
grinding head with coarse abrasive materials mounted thereon will be used
to grind on the outer surface of the decoration board and generate
concentric circles. If the abrasive materials on the grinding head have
high uniformity, it is still possible to form a set of neat concentric
circles. When less-uniform abrasive materials are used on the grinding
head, the concentric circles in a set will have different intervals.
However, if the density of the abrasive materials is high enough, and the
hairline generated by grinding is relatively much smaller, a set of neat
concentric circles may still be manufactured by the grinding process.

[0051]In the grinding or printing process, the stria structure may be
formed one by one; namely, only one stria structure is formed by using
the grinding/printing process once. A row of grinding/printing heads is
also possible to be applied onto the decoration board. The sequence of
printing out the stria structures will determine which stria structure is
covered by another. On the contrary, the sequence of grinding to form the
stria structures will determine which stria structure is partially
grinded again by another.

[0052]One practical option for each concentric circle, namely the
hairline, may be a reflecting line. For sunken type of stria structures,
the "reflecting" line may be generated by grinding the outer surface of a
"metal" decoration board with coarse abrasive materials. Grinded metal
shines. Grinded metal shines. For raised type of stria structures, the
"reflecting" appearance may be generated by printing the outer surface
with high reflection-coefficient ink materials.

[0053]The step of providing the plurality of concentric circles may
further include a step of providing the concentric circles with different
depths of the lines. Optionally, the concentric circles with different
widths of the lines, or the concentric circles with different pitches may
be provided.

[0054]Here, the method may further include the step as follows. The stria
structures are arranged such that the center points of the stria
structure assume a polygon. Alternatively, the circle non-decorated
region is disposed at the center of at least one of the stria structures.
Alternatively, the non-decorated region is disposed among at least three
of the stria structures.

[0055]As for the shapes formed by the concentric circles, the concentric
circles of the stria structures may form the visually-solid circle or the
annular region.

[0056]In Step S30, partially overlap the stria structures with one another
to generate multiple primary decoration regions and multiple secondary
decoration regions. At least one of the decoration board and the stria
structure is made of the reflective material. In addition to generating
the primary and the secondary decoration regions, the method further
includes the step as follows. At least one additional decoration region
is generated. Each additional decoration region has one decoration
frequency, and the decoration frequency is an integral times larger than
or equal to three, and each decoration frequency corresponds to a
different visible pattern.

[0057]In Step S40, the primary decoration regions and the secondary
decoration regions generate different visible patterns under the
different viewing angles according to the overlapping frequency and the
overlapping shapes of the stria structures. Here, the primary and the
secondary decoration regions may also generate different visible patterns
from the different viewing angles according to the decorating sequence of
the stria structure.

[0058]In addition, the stria structures may be sunken structures generated
by grinding or raised structures generated by printing.

[0059]In addition to the above steps, it is possible to vary the gloss of
the overlapping positions of the stria structures according to the
different overlapping frequency and viewing angles of the stria
structures.

[0060]Additional advantages and modifications will readily occur to those
proficient in the relevant fields. The invention in its broader aspects
is therefore not limited to the specific details and representative
embodiments shown and described herein. Accordingly, various
modifications may be made without departing from the spirit or scope of
the general inventive concept as defined by the appended claims and their
equivalents.